Procainamide (original) (raw)

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Summary

Procainamide is a medication used to treat life threatening ventricular arrhythmias.

Generic Name

Procainamide

DrugBank Accession Number

DB01035

Background

A derivative of procaine with less CNS action.

Type

Small Molecule

Groups

Approved

Structure

Weight

Average: 235.3253
Monoisotopic: 235.168462309

Chemical Formula

C13H21N3O

Synonyms

• p-Amino-N-(2-diethylaminoethyl)benzamide
• p-Aminobenzoic diethylaminoethylamide
• Procainamida
• Procainamide
• Procaïnamide
• Procainamidum

External IDs

• NSC-27461

Indication

For the treatment of life-threatening ventricular arrhythmias.

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Associated Conditions

Contraindications & Blackbox Warnings

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Pharmacodynamics

Procainamide is an agent indicated for production of local or regional anesthesia and in the treatment of ventricular tachycardia occurring during cardiac manipulation, such as surgery or catheterization, or which may occur during acute myocardial infarction, digitalis toxicity, or other cardiac diseases. The mode of action of the antiarrhythmic effect of Procainamide appears to be similar to that of procaine and quinidine. Ventricular excitability is depressed and the stimulation threshold of the ventricle is increased during diastole. The sinoatrial node is, however, unaffected.

Mechanism of action

Procainamide is sodium channel blocker. It stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses thereby effecting local anesthetic action.

Absorption

75 to 95%

Volume of distribution

• 2 L/kg

Protein binding

15 to 20%

Metabolism

Hepatic

Hover over products below to view reaction partners

Route of elimination

Trace amounts may be excreted in the urine as free and conjugated p-aminobenzoic acid, 30 to 60 percent as unchanged PA, and 6 to 52 percent as the NAPA derivative.

Half-life

~2.5-4.5 hours

Clearance

Not Available

Adverse Effects

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Toxicity

LD50=95 mg/kg (rat, IV); LD50=312 mg/kg (mouse, oral); LD50=103 mg/kg (mouse, IV); LD50=250 mg/kg (rabbit, IV)

Pathways

Pharmacogenomic Effects/ADRs

Not Available

Drug Interactions

This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.

• Approved
• Vet approved
• Nutraceutical
• Illicit
• Withdrawn
• Investigational
• Experimental
• All Drugs

Food Interactions

• Avoid alcohol.
• Take with food. Food reduces irritation.

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Product Ingredients

International/Other Brands

Biocoryl / Procan / Procapan

Brand Name Prescription Products

Generic Prescription Products

ATC Codes

C01BA02 — Procainamide

• C01BA — Antiarrhythmics, class Ia
• C01B — ANTIARRHYTHMICS, CLASS I AND III
• C01 — CARDIAC THERAPY
• C — CARDIOVASCULAR SYSTEM

Drug Categories

• Acids, Carbocyclic
• Agents Causing Muscle Toxicity
• Agents that produce neuromuscular block (indirect)
• Amides
• Aminobenzoates
• Antiarrhythmic agents
• Antiarrhythmics, Class I
• Antiarrhythmics, Class Ia
• Benzamides and benzamide derivatives
• Benzene Derivatives
• Benzoates
• Cardiac Therapy
• Cardiovascular Agents
• Cholinesterase Inhibitors
• Cytochrome P-450 CYP2D6 Substrates
• Cytochrome P-450 CYP2D6 Substrates with a Narrow Therapeutic Index
• Cytochrome P-450 Substrates
• Drugs that are Mainly Renally Excreted
• Drugs that are Mainly Renally Excreted with a Narrow Therapeutic Index
• Highest Risk QTc-Prolonging Agents
• MATE 1 Substrates
• MATE 1 Substrates with a Narrow Therapeutic Index
• MATE 2 Substrates
• MATE 2 Substrates with a Narrow Therapeutic Index
• MATE substrates
• Membrane Transport Modulators
• Narrow Therapeutic Index Drugs
• Negative Inotrope
• OCT1 inhibitors
• OCT2 Inhibitors
• OCT2 Substrates with a Narrow Therapeutic Index
• para-Aminobenzoates
• QTc Prolonging Agents
• Sodium Channel Blockers
• Voltage-Gated Sodium Channel Blockers

Chemical TaxonomyProvided by Classyfire

Description

This compound belongs to the class of organic compounds known as aminobenzamides. These are organic compounds containing a benzamide moiety with an amine group attached to the benzene ring.

Kingdom

Organic compounds

Super Class

Benzenoids

Class

Benzene and substituted derivatives

Sub Class

Benzoic acids and derivatives

Direct Parent

Aminobenzamides

Alternative Parents

Benzamides / Benzoyl derivatives / Aniline and substituted anilines / Trialkylamines / Secondary carboxylic acid amides / Amino acids and derivatives / Primary amines / Organopnictogen compounds / Organooxygen compounds / Organic oxides / Hydrocarbon derivatives show 1 more

Substituents

Amine / Amino acid or derivatives / Aminobenzamide / Aniline or substituted anilines / Aromatic homomonocyclic compound / Benzamide / Benzoyl / Carboxamide group / Carboxylic acid derivative / Hydrocarbon derivative / Organic nitrogen compound / Organic oxide / Organic oxygen compound / Organonitrogen compound / Organooxygen compound / Organopnictogen compound / Primary amine / Secondary carboxylic acid amide / Tertiary aliphatic amine / Tertiary amine show 10 more

Molecular Framework

Aromatic homomonocyclic compounds

External Descriptors

benzamides (CHEBI:8428)

Affected organisms

• Humans and other mammals

UNII

L39WTC366D

CAS number

51-06-9

InChI Key

REQCZEXYDRLIBE-UHFFFAOYSA-N

InChI

InChI=1S/C13H21N3O/c1-3-16(4-2)10-9-15-13(17)11-5-7-12(14)8-6-11/h5-8H,3-4,9-10,14H2,1-2H3,(H,15,17)

IUPAC Name

4-amino-N-[2-(diethylamino)ethyl]benzamide

SMILES

CCN(CC)CCNC(=O)C1=CC=C(N)C=C1

Synthesis Reference

Victor Chu, Zhu Teng, Steve Goss, Ronald Edwards, Kelle Garvey, Timothy Gorzynski, William Bedzyk, "Synthesis and application of procainamide analogs for use in an immunoassay." U.S. Patent US20050227288, issued October 13, 2005.

US20050227288

General References

Not Available

External Links

Human Metabolome Database

HMDB0015169

KEGG Compound

C07401

PubChem Compound

4913

PubChem Substance

46507313

ChemSpider

4744

BindingDB

39344

RxNav

8700

ChEBI

8428

ChEMBL

CHEMBL640

ZINC

ZINC000001530756

Therapeutic Targets Database

DAP000516

PharmGKB

PA451108

RxList

RxList Drug Page

Drugs.com

Drugs.com Drug Page

Wikipedia

Procainamide

MSDS

Clinical Trials

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Manufacturers

Not Available

Packagers

• E.R. Squibb and Sons LLC
• Hospira Inc.
• Ivax Pharmaceuticals
• Kaiser Foundation Hospital
• Major Pharmaceuticals
• Mckesson Corp.
• Monarch Pharmacy
• Murfreesboro Pharmaceutical Nursing Supply
• Neuman Distributors Inc.
• PD-Rx Pharmaceuticals Inc.
• Physicians Total Care Inc.
• United Research Laboratories Inc.

Dosage Forms

Prices

DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.

Patents

Patent Number	Pediatric Extension	Approved	Expires (estimated)	Region
US5656296	No	1997-08-12	2014-08-12

State

Solid

Experimental Properties

Predicted Properties

Predicted ADMET Features

ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Mass Spec (NIST)

Not Available

Spectra

Chromatographic Properties

Collision Cross Sections (CCS)

Targets

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Kind

Protein

Organism

Humans

Pharmacological action

Yes

Actions

Inhibitor

General Function

Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel. Channel properties are modulated by cAMP and subunit assembly. Mediates the rapidly activating component of the delayed rectifying potassium current in heart (IKr) (PubMed:18559421, PubMed:26363003, PubMed:27916661).

Specific Function

C3HC4-type RING finger domain binding

Gene Name

KCNH2

Uniprot ID

Q12809

Uniprot Name

Potassium voltage-gated channel subfamily H member 2

Molecular Weight

126653.52 Da

References

1. Chiu PJ, Marcoe KF, Bounds SE, Lin CH, Feng JJ, Lin A, Cheng FC, Crumb WJ, Mitchell R: Validation of a [3H]astemizole binding assay in HEK293 cells expressing HERG K+ channels. J Pharmacol Sci. 2004 Jul;95(3):311-9. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Yes

Actions

Inhibitor

General Function

This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient (PubMed:1309946, PubMed:21447824, PubMed:23085483, PubMed:23420830, PubMed:25370050, PubMed:26279430, PubMed:26392562, PubMed:26776555). It is a tetrodotoxin-resistant Na(+) channel isoform (PubMed:1309946). This channel is responsible for the initial upstroke of the action potential. Channel inactivation is regulated by intracellular calcium levels (PubMed:19074138). Required for normal electrical conduction including formation of the infranodal ventricular conduction system and normal action potential configuration, as a result of its interaction with XIRP2 (By similarity).

Specific Function

ankyrin binding

Gene Name

SCN5A

Uniprot ID

Q14524

Uniprot Name

Sodium channel protein type 5 subunit alpha

Molecular Weight

226937.475 Da

References

1. Weiss R, Barmada MM, Nguyen T, Seibel JS, Cavlovich D, Kornblit CA, Angelilli A, Villanueva F, McNamara DM, London B: Clinical and molecular heterogeneity in the Brugada syndrome: a novel gene locus on chromosome 3. Circulation. 2002 Feb 12;105(6):707-13. [Article]
2. Brugada R, Brugada J, Antzelevitch C, Kirsch GE, Potenza D, Towbin JA, Brugada P: Sodium channel blockers identify risk for sudden death in patients with ST-segment elevation and right bundle branch block but structurally normal hearts. Circulation. 2000 Feb 8;101(5):510-5. [Article]
3. Chen SM, Kuo CT, Lin KH, Chiang FT: Brugada syndrome without mutation of the cardiac sodium channel gene in a Taiwanese patient. J Formos Med Assoc. 2000 Nov;99(11):860-2. [Article]
4. Brugada J, Brugada R, Brugada P: [Brugada syndrome]. Arch Mal Coeur Vaiss. 1999 Jul;92(7):847-50. [Article]
5. Brugada J, Brugada P, Brugada R: The syndrome of right bundle branch block ST segment elevation in V1 to V3 and sudden death--the Brugada syndrome. Europace. 1999 Jul;1(3):156-66. [Article]
6. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Other

General Function

Methylates CpG residues. Preferentially methylates hemimethylated DNA. Associates with DNA replication sites in S phase maintaining the methylation pattern in the newly synthesized strand, that is essential for epigenetic inheritance. Associates with chromatin during G2 and M phases to maintain DNA methylation independently of replication. It is responsible for maintaining methylation patterns established in development. DNA methylation is coordinated with methylation of histones. Mediates transcriptional repression by direct binding to HDAC2. In association with DNMT3B and via the recruitment of CTCFL/BORIS, involved in activation of BAG1 gene expression by modulating dimethylation of promoter histone H3 at H3K4 and H3K9. Probably forms a corepressor complex required for activated KRAS-mediated promoter hypermethylation and transcriptional silencing of tumor suppressor genes (TSGs) or other tumor-related genes in colorectal cancer (CRC) cells (PubMed:24623306). Also required to maintain a transcriptionally repressive state of genes in undifferentiated embryonic stem cells (ESCs) (PubMed:24623306). Associates at promoter regions of tumor suppressor genes (TSGs) leading to their gene silencing (PubMed:24623306). Promotes tumor growth (PubMed:24623306).

Specific Function

DNA (cytosine-5-)-methyltransferase activity

Gene Name

DNMT1

Uniprot ID

P26358

Uniprot Name

DNA (cytosine-5)-methyltransferase 1

Molecular Weight

183163.635 Da

References

1. Oelke K, Lu Q, Richardson D, Wu A, Deng C, Hanash S, Richardson B: Overexpression of CD70 and overstimulation of IgG synthesis by lupus T cells and T cells treated with DNA methylation inhibitors. Arthritis Rheum. 2004 Jun;50(6):1850-60. [Article]
2. Januchowski R, Jagodzinski PP: Effect of 5-azacytidine and procainamide on CD3-zeta chain expression in Jurkat T cells. Biomed Pharmacother. 2005 Apr;59(3):122-6. [Article]
3. Lee BH, Yegnasubramanian S, Lin X, Nelson WG: Procainamide is a specific inhibitor of DNA methyltransferase 1. J Biol Chem. 2005 Dec 9;280(49):40749-56. Epub 2005 Oct 17. [Article]
4. Scheinbart LS, Johnson MA, Gross LA, Edelstein SR, Richardson BC: Procainamide inhibits DNA methyltransferase in a human T cell line. J Rheumatol. 1991 Apr;18(4):530-4. [Article]

Enzymes

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Substrate

General Function

A cytochrome P450 monooxygenase involved in the metabolism of fatty acids, steroids and retinoids (PubMed:18698000, PubMed:19965576, PubMed:20972997, PubMed:21289075, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:18698000, PubMed:19965576, PubMed:20972997, PubMed:21289075, PubMed:21576599). Catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) (PubMed:19965576, PubMed:20972997). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 20-hydroxyeicosatetraenoic acid ethanolamide (20-HETE-EA) and 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:18698000, PubMed:21289075). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes cholesterol toward 25-hydroxycholesterol, a physiological regulator of cellular cholesterol homeostasis (PubMed:21576599). Catalyzes the oxidative transformations of all-trans retinol to all-trans retinal, a precursor for the active form all-trans-retinoic acid (PubMed:10681376). Also involved in the oxidative metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants.

Specific Function

anandamide 11,12 epoxidase activity

Gene Name

CYP2D6

Uniprot ID

P10635

Uniprot Name

Cytochrome P450 2D6

Molecular Weight

55768.94 Da

References

1. Lessard E, Hamelin BA, Labbe L, O'Hara G, Belanger PM, Turgeon J: Involvement of CYP2D6 activity in the N-oxidation of procainamide in man. Pharmacogenetics. 1999 Dec;9(6):683-96. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Esterase with broad substrate specificity. Contributes to the inactivation of the neurotransmitter acetylcholine. Can degrade neurotoxic organophosphate esters.

Specific Function

acetylcholinesterase activity

Gene Name

BCHE

Uniprot ID

P06276

Uniprot Name

Cholinesterase

Molecular Weight

68417.575 Da

References

1. Bailey DN: Amitriptyline and procainamide inhibition of cocaine and cocaethylene degradation in human serum in vitro. J Anal Toxicol. 1999 Mar-Apr;23(2):99-102. [Article]
2. Page JD, Wilson IB, Silman I: Butyrylcholinesterase: inhibition by arsenite, fluoride, and other ligands, cooperativity in binding. Mol Pharmacol. 1985 Apr;27(4):437-43. [Article]

Transporters

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Electrogenic voltage-dependent transporter that mediates the transport of a variety of organic cations such as endogenous bioactive amines, cationic drugs and xenobiotics (PubMed:9260930, PubMed:9687576). Functions as a Na(+)-independent, bidirectional uniporter (PubMed:21128598, PubMed:9687576). Cation cellular uptake or release is driven by the electrochemical potential, i.e. membrane potential and concentration gradient (PubMed:15212162, PubMed:9260930, PubMed:9687576). However, may also engage electroneutral cation exchange when saturating concentrations of cation substrates are reached (By similarity). Predominantly expressed at the basolateral membrane of hepatocytes and proximal tubules and involved in the uptake and disposition of cationic compounds by hepatic and renal clearance from the blood flow (PubMed:15783073). Implicated in monoamine neurotransmitters uptake such as histamine, dopamine, adrenaline/epinephrine, noradrenaline/norepinephrine, serotonin and tyramine, thereby supporting a physiological role in the central nervous system by regulating interstitial concentrations of neurotransmitters (PubMed:16581093, PubMed:17460754, PubMed:9687576). Also capable of transporting dopaminergic neuromodulators cyclo(his-pro), salsolinol and N-methyl-salsolinol, thereby involved in the maintenance of dopaminergic cell integrity in the central nervous system (PubMed:17460754). Mediates the bidirectional transport of acetylcholine (ACh) at the apical membrane of ciliated cell in airway epithelium, thereby playing a role in luminal release of ACh from bronchial epithelium (PubMed:15817714). Also transports guanidine and endogenous monoamines such as vitamin B1/thiamine, creatinine and N-1-methylnicotinamide (NMN) (PubMed:12089365, PubMed:15212162, PubMed:17072098, PubMed:24961373, PubMed:9260930). Mediates the uptake and efflux of quaternary ammonium compound choline (PubMed:9260930). Mediates the bidirectional transport of polyamine agmatine and the uptake of polyamines putrescine and spermidine (PubMed:12538837, PubMed:21128598). Able to transport non-amine endogenous compounds such as prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) (PubMed:11907186). Also involved in the uptake of xenobiotic 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP) (PubMed:12395288, PubMed:16394027). May contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable).

Specific Function

acetylcholine transmembrane transporter activity

Gene Name

SLC22A2

Uniprot ID

O15244

Uniprot Name

Solute carrier family 22 member 2

Molecular Weight

62579.99 Da

References

1. Urakami Y, Akazawa M, Saito H, Okuda M, Inui K: cDNA cloning, functional characterization, and tissue distribution of an alternatively spliced variant of organic cation transporter hOCT2 predominantly expressed in the human kidney. J Am Soc Nephrol. 2002 Jul;13(7):1703-10. [Article]
2. Gorboulev V, Ulzheimer JC, Akhoundova A, Ulzheimer-Teuber I, Karbach U, Quester S, Baumann C, Lang F, Busch AE, Koepsell H: Cloning and characterization of two human polyspecific organic cation transporters. DNA Cell Biol. 1997 Jul;16(7):871-81. [Article]
3. Kakehi M, Koyabu N, Nakamura T, Uchiumi T, Kuwano M, Ohtani H, Sawada Y: Functional characterization of mouse cation transporter mOCT2 compared with mOCT1. Biochem Biophys Res Commun. 2002 Aug 23;296(3):644-50. [Article]
4. Arndt P, Volk C, Gorboulev V, Budiman T, Popp C, Ulzheimer-Teuber I, Akhoundova A, Koppatz S, Bamberg E, Nagel G, Koepsell H: Interaction of cations, anions, and weak base quinine with rat renal cation transporter rOCT2 compared with rOCT1. Am J Physiol Renal Physiol. 2001 Sep;281(3):F454-68. [Article]
5. Goralski KB, Lou G, Prowse MT, Gorboulev V, Volk C, Koepsell H, Sitar DS: The cation transporters rOCT1 and rOCT2 interact with bicarbonate but play only a minor role for amantadine uptake into rat renal proximal tubules. J Pharmacol Exp Ther. 2002 Dec;303(3):959-68. [Article]
6. Ishiguro N, Saito A, Yokoyama K, Morikawa M, Igarashi T, Tamai I: Transport of the dopamine D2 agonist pramipexole by rat organic cation transporters OCT1 and OCT2 in kidney. Drug Metab Dispos. 2005 Apr;33(4):495-9. Epub 2005 Jan 7. [Article]
7. Urakami Y, Okuda M, Masuda S, Akazawa M, Saito H, Inui K: Distinct characteristics of organic cation transporters, OCT1 and OCT2, in the basolateral membrane of renal tubules. Pharm Res. 2001 Nov;18(11):1528-34. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Electrogenic voltage-dependent transporter that mediates the transport of a variety of organic cations such as endogenous bioactive amines, cationic drugs and xenobiotics (PubMed:11388889, PubMed:11408531, PubMed:12439218, PubMed:12719534, PubMed:15389554, PubMed:16263091, PubMed:16272756, PubMed:16581093, PubMed:19536068, PubMed:21128598, PubMed:23680637, PubMed:24961373, PubMed:34040533, PubMed:9187257, PubMed:9260930, PubMed:9655880). Functions as a pH- and Na(+)-independent, bidirectional transporter (By similarity). Cation cellular uptake or release is driven by the electrochemical potential (i.e. membrane potential and concentration gradient) and substrate selectivity (By similarity). Hydrophobicity is a major requirement for recognition in polyvalent substrates and inhibitors (By similarity). Primarily expressed at the basolateral membrane of hepatocytes and proximal tubules and involved in the uptake and disposition of cationic compounds by hepatic and renal clearance from the blood flow (By similarity). Most likely functions as an uptake carrier in enterocytes contributing to the intestinal elimination of organic cations from the systemic circulation (PubMed:16263091). Transports endogenous monoamines such as N-1-methylnicotinamide (NMN), guanidine, histamine, neurotransmitters dopamine, serotonin and adrenaline (PubMed:12439218, PubMed:24961373, PubMed:35469921, PubMed:9260930). Also transports natural polyamines such as spermidine, agmatine and putrescine at low affinity, but relatively high turnover (PubMed:21128598). Involved in the hepatic uptake of vitamin B1/thiamine, hence regulating hepatic lipid and energy metabolism (PubMed:24961373). Mediates the bidirectional transport of acetylcholine (ACh) at the apical membrane of ciliated cell in airway epithelium, thereby playing a role in luminal release of ACh from bronchial epithelium (PubMed:15817714). Transports dopaminergic neuromodulators cyclo(his-pro) and salsolinol with lower efficency (PubMed:17460754). Also capable of transporting non-amine endogenous compounds such as prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) (PubMed:11907186). May contribute to the transport of cationic compounds in testes across the blood-testis-barrier (Probable). Also involved in the uptake of xenobiotics tributylmethylammonium (TBuMA), quinidine, N-methyl-quinine (NMQ), N-methyl-quinidine (NMQD) N-(4,4-azo-n-pentyl)-quinuclidine (APQ), azidoprocainamide methoiodide (AMP), N-(4,4-azo-n-pentyl)-21-deoxyajmalinium (APDA) and 4-(4-(dimethylamino)styryl)-N-methylpyridinium (ASP) (PubMed:11408531, PubMed:15389554, PubMed:35469921, PubMed:9260930).

Specific Function

(R)-carnitine transmembrane transporter activity

Gene Name

SLC22A1

Uniprot ID

O15245

Uniprot Name

Solute carrier family 22 member 1

Molecular Weight

61153.345 Da

References

1. Bednarczyk D, Ekins S, Wikel JH, Wright SH: Influence of molecular structure on substrate binding to the human organic cation transporter, hOCT1. Mol Pharmacol. 2003 Mar;63(3):489-98. [Article]
2. Zhang L, Dresser MJ, Gray AT, Yost SC, Terashita S, Giacomini KM: Cloning and functional expression of a human liver organic cation transporter. Mol Pharmacol. 1997 Jun;51(6):913-21. [Article]
3. Zhang L, Schaner ME, Giacomini KM: Functional characterization of an organic cation transporter (hOCT1) in a transiently transfected human cell line (HeLa). J Pharmacol Exp Ther. 1998 Jul;286(1):354-61. [Article]
4. Kakehi M, Koyabu N, Nakamura T, Uchiumi T, Kuwano M, Ohtani H, Sawada Y: Functional characterization of mouse cation transporter mOCT2 compared with mOCT1. Biochem Biophys Res Commun. 2002 Aug 23;296(3):644-50. [Article]
5. Green RM, Lo K, Sterritt C, Beier DR: Cloning and functional expression of a mouse liver organic cation transporter. Hepatology. 1999 May;29(5):1556-62. [Article]
6. Zhang L, Dresser MJ, Chun JK, Babbitt PC, Giacomini KM: Cloning and functional characterization of a rat renal organic cation transporter isoform (rOCT1A). J Biol Chem. 1997 Jun 27;272(26):16548-54. [Article]
7. Goralski KB, Lou G, Prowse MT, Gorboulev V, Volk C, Koepsell H, Sitar DS: The cation transporters rOCT1 and rOCT2 interact with bicarbonate but play only a minor role for amantadine uptake into rat renal proximal tubules. J Pharmacol Exp Ther. 2002 Dec;303(3):959-68. [Article]
8. Urakami Y, Okuda M, Masuda S, Akazawa M, Saito H, Inui K: Distinct characteristics of organic cation transporters, OCT1 and OCT2, in the basolateral membrane of renal tubules. Pharm Res. 2001 Nov;18(11):1528-34. [Article]
9. Grundemann D, Gorboulev V, Gambaryan S, Veyhl M, Koepsell H: Drug excretion mediated by a new prototype of polyspecific transporter. Nature. 1994 Dec 8;372(6506):549-52. [Article]
10. Ishiguro N, Saito A, Yokoyama K, Morikawa M, Igarashi T, Tamai I: Transport of the dopamine D2 agonist pramipexole by rat organic cation transporters OCT1 and OCT2 in kidney. Drug Metab Dispos. 2005 Apr;33(4):495-9. Epub 2005 Jan 7. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Electrogenic voltage-dependent transporter that mediates the transport of a variety of organic cations such as endogenous bioactive amines, cationic drugs and xenobiotics (PubMed:10196521, PubMed:10966924, PubMed:12538837, PubMed:17460754, PubMed:20858707). Cation cellular uptake or release is driven by the electrochemical potential, i.e. membrane potential and concentration gradient (PubMed:10966924). Functions as a Na(+)- and Cl(-)-independent, bidirectional uniporter (PubMed:12538837). Implicated in monoamine neurotransmitters uptake such as dopamine, adrenaline/epinephrine, noradrenaline/norepinephrine, histamine, serotonin and tyramine, thereby supporting a role in homeostatic regulation of aminergic neurotransmission in the brain (PubMed:10196521, PubMed:16581093, PubMed:20858707). Transports dopaminergic neuromodulators cyclo(his-pro) and salsolinol with low efficiency (PubMed:17460754). May be involved in the uptake and disposition of cationic compounds by renal clearance from the blood flow (PubMed:10966924). May contribute to regulate the transport of cationic compounds in testis across the blood-testis-barrier (Probable). Mediates the transport of polyamine spermidine and putrescine (By similarity). Mediates the bidirectional transport of polyamine agmatine (PubMed:12538837). Also transports guanidine (PubMed:10966924). May also mediate intracellular transport of organic cations, thereby playing a role in amine metabolism and intracellular signaling (By similarity).

Specific Function

monoamine transmembrane transporter activity

Gene Name

SLC22A3

Uniprot ID

O75751

Uniprot Name

Solute carrier family 22 member 3

Molecular Weight

61279.485 Da

References

1. Wu X, Huang W, Ganapathy ME, Wang H, Kekuda R, Conway SJ, Leibach FH, Ganapathy V: Structure, function, and regional distribution of the organic cation transporter OCT3 in the kidney. Am J Physiol Renal Physiol. 2000 Sep;279(3):F449-58. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Sodium-ion dependent, high affinity carnitine transporter. Involved in the active cellular uptake of carnitine. Transports one sodium ion with one molecule of carnitine (PubMed:10454528, PubMed:10525100, PubMed:10966938, PubMed:17509700, PubMed:20722056, PubMed:33124720). Also transports organic cations such as tetraethylammonium (TEA) without the involvement of sodium. Relative uptake activity ratio of carnitine to TEA is 11.3 (PubMed:10454528, PubMed:10525100, PubMed:10966938). In intestinal epithelia, transports the quorum-sensing pentapeptide CSF (competence and sporulation factor) from Bacillus Subtilis wich induces cytoprotective heat shock proteins contributing to intestinal homeostasis (PubMed:18005709). May also contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable).

Specific Function

(R)-carnitine transmembrane transporter activity

Gene Name

SLC22A5

Uniprot ID

O76082

Uniprot Name

Organic cation/carnitine transporter 2

Molecular Weight

62751.08 Da

References

1. Wu X, Prasad PD, Leibach FH, Ganapathy V: cDNA sequence, transport function, and genomic organization of human OCTN2, a new member of the organic cation transporter family. Biochem Biophys Res Commun. 1998 May 29;246(3):589-95. [Article]
2. Ohashi R, Tamai I, Yabuuchi H, Nezu JI, Oku A, Sai Y, Shimane M, Tsuji A: Na(+)-dependent carnitine transport by organic cation transporter (OCTN2): its pharmacological and toxicological relevance. J Pharmacol Exp Ther. 1999 Nov;291(2):778-84. [Article]
3. Ohashi R, Tamai I, Nezu Ji J, Nikaido H, Hashimoto N, Oku A, Sai Y, Shimane M, Tsuji A: Molecular and physiological evidence for multifunctionality of carnitine/organic cation transporter OCTN2. Mol Pharmacol. 2001 Feb;59(2):358-66. [Article]
4. Wu X, Huang W, Prasad PD, Seth P, Rajan DP, Leibach FH, Chen J, Conway SJ, Ganapathy V: Functional characteristics and tissue distribution pattern of organic cation transporter 2 (OCTN2), an organic cation/carnitine transporter. J Pharmacol Exp Ther. 1999 Sep;290(3):1482-92. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Inhibitor

General Function

Transporter that mediates the transport of endogenous and microbial zwitterions and organic cations (PubMed:10215651, PubMed:15107849, PubMed:15795384, PubMed:16729965, PubMed:20601551, PubMed:22206629, PubMed:22569296, PubMed:29530864). Functions as a Na(+)-dependent and pH-dependent high affinity microbial symporter of potent food-derived antioxidant ergothioeine (PubMed:15795384, PubMed:29530864, PubMed:33124720). Transports one sodium ion with one ergothioeine molecule (By similarity). Involved in the absorption of ergothioneine from the luminal/apical side of the small intestine and renal tubular cells, and into non-parenchymal liver cells, thereby contributing to maintain steady-state ergothioneine level in the body (PubMed:20601551). Also mediates the bidirectional transport of acetycholine, although the exact transport mechanism has not been fully identified yet (PubMed:22206629). Most likely exports anti-inflammatory acetylcholine in non-neuronal tissues, thereby contributing to the non-neuronal cholinergic system (PubMed:22206629, PubMed:22569296). Displays a general physiological role linked to better survival by controlling inflammation and oxidative stress, which may be related to ergothioneine and acetycholine transports (PubMed:15795384, PubMed:22206629). May also function as a low-affinity Na(+)-dependent transporter of L-carnitine through the mitochondrial membrane, thereby maintaining intracellular carnitine homeostasis (PubMed:10215651, PubMed:15107849, PubMed:16729965). May contribute to regulate the transport of cationic compounds in testis across the blood-testis-barrier (PubMed:35307651).

Specific Function

acetylcholine transmembrane transporter activity

Gene Name

SLC22A4

Uniprot ID

Q9H015

Uniprot Name

Solute carrier family 22 member 4

Molecular Weight

62154.48 Da

References

1. Yabuuchi H, Tamai I, Nezu J, Sakamoto K, Oku A, Shimane M, Sai Y, Tsuji A: Novel membrane transporter OCTN1 mediates multispecific, bidirectional, and pH-dependent transport of organic cations. J Pharmacol Exp Ther. 1999 May;289(2):768-73. [Article]
2. Wu X, George RL, Huang W, Wang H, Conway SJ, Leibach FH, Ganapathy V: Structural and functional characteristics and tissue distribution pattern of rat OCTN1, an organic cation transporter, cloned from placenta. Biochim Biophys Acta. 2000 Jun 1;1466(1-2):315-27. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Substrate

General Function

Multidrug efflux pump that functions as a H(+)/organic cation antiporter (PubMed:16330770, PubMed:17509534). Plays a physiological role in the excretion of cationic compounds including endogenous metabolites, drugs, toxins through the kidney and liver, into urine and bile respectively (PubMed:16330770, PubMed:17495125, PubMed:17509534, PubMed:17582384, PubMed:18305230, PubMed:19158817, PubMed:21128598, PubMed:24961373). Mediates the efflux of endogenous compounds such as creatinine, vitamin B1/thiamine, agmatine and estrone-3-sulfate (PubMed:16330770, PubMed:17495125, PubMed:17509534, PubMed:17582384, PubMed:18305230, PubMed:19158817, PubMed:21128598, PubMed:24961373). May also contribute to regulate the transport of cationic compounds in testis across the blood-testis-barrier (Probable).

Specific Function

antiporter activity

Gene Name

SLC47A1

Uniprot ID

Q96FL8

Uniprot Name

Multidrug and toxin extrusion protein 1

Molecular Weight

61921.585 Da

References

1. Tanihara Y, Masuda S, Sato T, Katsura T, Ogawa O, Inui K: Substrate specificity of MATE1 and MATE2-K, human multidrug and toxin extrusions/H(+)-organic cation antiporters. Biochem Pharmacol. 2007 Jul 15;74(2):359-71. doi: 10.1016/j.bcp.2007.04.010. Epub 2007 Apr 13. [Article]
2. Motohashi H, Inui K: Organic cation transporter OCTs (SLC22) and MATEs (SLC47) in the human kidney. AAPS J. 2013 Apr;15(2):581-8. doi: 10.1208/s12248-013-9465-7. Epub 2013 Feb 22. [Article]
3. Somogyi A, Muirhead M: Pharmacokinetic interactions of cimetidine 1987. Clin Pharmacokinet. 1987 May;12(5):321-66. doi: 10.2165/00003088-198712050-00002. [Article]
4. Ito S, Kusuhara H, Yokochi M, Toyoshima J, Inoue K, Yuasa H, Sugiyama Y: Competitive inhibition of the luminal efflux by multidrug and toxin extrusions, but not basolateral uptake by organic cation transporter 2, is the likely mechanism underlying the pharmacokinetic drug-drug interactions caused by cimetidine in the kidney. J Pharmacol Exp Ther. 2012 Feb;340(2):393-403. doi: 10.1124/jpet.111.184986. Epub 2011 Nov 9. [Article]

Kind

Protein

Organism

Humans

Pharmacological action

Unknown

Actions

Substrate

General Function

Multidrug efflux pump that functions as a H(+)/organic cation antiporter. Mediates the efflux of cationic compounds, such as the model cations, tetraethylammonium (TEA) and 1-methyl-4-phenylpyridinium (MPP+), the platinum-based drug oxaliplatin or weak bases that are positively charged at physiological pH, cimetidine, the platinum-based drugs cisplatin and oxaliplatin or the antidiabetic drug metformin. Mediates the efflux of endogenous compounds such as, creatinine, thiamine and estrone-3-sulfate. Plays a physiological role in the excretion of drugs, toxins and endogenous metabolites through the kidney.

Specific Function

antiporter activity

Gene Name

SLC47A2

Uniprot ID

Q86VL8

Uniprot Name

Multidrug and toxin extrusion protein 2

Molecular Weight

65083.915 Da

References

1. Tanihara Y, Masuda S, Sato T, Katsura T, Ogawa O, Inui K: Substrate specificity of MATE1 and MATE2-K, human multidrug and toxin extrusions/H(+)-organic cation antiporters. Biochem Pharmacol. 2007 Jul 15;74(2):359-71. doi: 10.1016/j.bcp.2007.04.010. Epub 2007 Apr 13. [Article]
2. Motohashi H, Inui K: Organic cation transporter OCTs (SLC22) and MATEs (SLC47) in the human kidney. AAPS J. 2013 Apr;15(2):581-8. doi: 10.1208/s12248-013-9465-7. Epub 2013 Feb 22. [Article]
3. Somogyi A, Muirhead M: Pharmacokinetic interactions of cimetidine 1987. Clin Pharmacokinet. 1987 May;12(5):321-66. doi: 10.2165/00003088-198712050-00002. [Article]
4. Ito S, Kusuhara H, Yokochi M, Toyoshima J, Inoue K, Yuasa H, Sugiyama Y: Competitive inhibition of the luminal efflux by multidrug and toxin extrusions, but not basolateral uptake by organic cation transporter 2, is the likely mechanism underlying the pharmacokinetic drug-drug interactions caused by cimetidine in the kidney. J Pharmacol Exp Ther. 2012 Feb;340(2):393-403. doi: 10.1124/jpet.111.184986. Epub 2011 Nov 9. [Article]

Drug created at June 13, 2005 13:24 / Updated at October 01, 2024 12:45